EP1304533A2 - Verflüssiger für Haushaltskühlmöbel und mit solchem Verflüssiger versehenes Haushaltskühlmöbel - Google Patents

Verflüssiger für Haushaltskühlmöbel und mit solchem Verflüssiger versehenes Haushaltskühlmöbel Download PDF

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Publication number
EP1304533A2
EP1304533A2 EP02020523A EP02020523A EP1304533A2 EP 1304533 A2 EP1304533 A2 EP 1304533A2 EP 02020523 A EP02020523 A EP 02020523A EP 02020523 A EP02020523 A EP 02020523A EP 1304533 A2 EP1304533 A2 EP 1304533A2
Authority
EP
European Patent Office
Prior art keywords
condenser
channelling
fact
plates
condenser according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02020523A
Other languages
English (en)
French (fr)
Other versions
EP1304533A3 (de
EP1304533B1 (de
Inventor
Enzo Whirlpool Europe s.r.l. Rivis
Giuseppe Whirlpool Europe s.r.l. Panighini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Whirlpool Corp
Original Assignee
Whirlpool Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Whirlpool Corp filed Critical Whirlpool Corp
Publication of EP1304533A2 publication Critical patent/EP1304533A2/de
Publication of EP1304533A3 publication Critical patent/EP1304533A3/de
Application granted granted Critical
Publication of EP1304533B1 publication Critical patent/EP1304533B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/043—Condensers made by assembling plate-like or laminated elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size

Definitions

  • the present invention concerns a condenser for domestic refrigerator cabinets, of the type comprising channelling for the passage of the refrigerant associated with a substantially flat metal surface in order to increase the heat exchange between the refrigerant and the air.
  • refrigerator cabinet refers to any type of domestic refrigerator or freezer.
  • the static condensers used today in domestic refrigeration are essentially of two types: plate-type and wire-type.
  • the first type is that referred to at the start of the description. Both types have the drawback of having a primary surface (tube) and a secondary surface (plate or wires) that are joined to the primary one by stapling or welding (therefore contact is made at only a few points, with a consequent loss of temperature and hence efficiency).
  • the aim of the present invention is therefore that of providing a condenser that does not have the aforementioned drawbacks, for which a substantial energy saving can be guaranteed, while remaining simple and economic to produce.
  • the condenser comprises two metal plates facing each other and joined together by welding or brazing, at least one of said plates being provided with a shaped groove capable of constituting said channelling for the passage of the refrigerant.
  • the plate condensers used nowadays have a thickness of 0.3-0.4 mm
  • the condenser is formed by two plates of a thickness preferably comprised between 0.2 and 0.5mm, more preferably between 0.3 and 0.4 mm, brazed or welded together, for which the total thickness is preferably comprised between 0.6 and 0.8 mm.
  • the solution according to the invention requires a section of the channelling preferably comprised between 6 and 14 mm2, more preferably comprised between 8 and 12 mm2.
  • the condenser can advantageously be provided with finning between the channelling, which permits better circulation of air between the two sides of the condenser.
  • the optimal height of the fins is comprised between 3 and 12 mm, preferably between 5 and 10 mm.
  • the reference numeral 10 illustrates a domestic refrigerator provided, on a rear wall thereof 10a, with a condenser 12 capable of receiving hot refrigerant coming from a compressor C, of liquefying it gradually and of sending it, cooled, to an evaporator (not illustrated) of the refrigerant circuit.
  • the condenser 12 is constituted by two metal plates 12a and 12b made of iron or steel ( Figures 4 and 5) brazed together in a furnace (for example, using a copper-based brazing alloy) and each having a thickness of 0.4mm.
  • One of the two plates in the example illustrated in the drawing the plate 12b, has a shaped groove 14 made for example by pressing, which covers substantially the whole flat surface of the condenser along a coiled path.
  • the refrigerant enters the bottom of the channelling defined by the groove 14 and flows, horizontally and back and forth, over the flat surface of the condenser until it reaches the top. From there, through a vertical groove 14', it is directed towards the lower portion of the condenser, from where it is then sent subsequently to the evaporator.
  • the vertical distance H between two parallel lengths of the groove is, in the example illustrated, comprised between 30 and 40 mm.
  • the condenser 12 has at the side two L-shaped folded edges 12c that are capable of defining both the portions for joining (for example by screwing) to the rear wall 10a of the refrigerator 10 and, together with said wall, a channel F generally known as a "chimney" suitably inclined and suitable for favouring the circulation of air by convective motion in relation to the condenser 12.
  • the surfaces of the condenser comprised between the parallel rectilinear lengths of the groove 14 are provided with fins 16 made by partial cutting of the plates 12a and 12b and subsequent bending ( Figures 3 and 4).
  • Tests carried out by the applicant have demonstrated that the optimal height H' of the fins is comprised between 5 and 10 mm, with a length of between 20 and 40 mm, although this latter characteristic is not particularly critical and is dictated by the exigencies of practical production of the fins.
  • the groove 14 of the condenser 12 has an optimal section of passage of 8 - 12mm2, with a depth of 2.1 - 3.2 mm, a main radius R ( Figure 5) of 1.5 - 2 mm and a secondary radius R' (for connection to the flat plate 12a of the condenser) of 0.5 - 1 mm.
  • the condenser 12 is provided with small connecting tubes 18 joined to the condenser itself during the process of brazing or welding the two plates 12a and 12b.
  • the groove can be produced on both the plates so that the channelling is made in the space between the grooves facing each other; in this configuration the channelling has a substantially circular cross-section.
  • the material of the plates can also vary, although the choice of iron or steel is the only one that guarantees the advantageous effects both in terms of energy efficiency and of reduced costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP02020523A 2001-10-18 2002-09-16 Haushaltskühlschrank mit einem Kühlfach und einem Kondensator Expired - Lifetime EP1304533B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVA20010037 2001-10-18
IT2001VA000037A ITVA20010037A1 (it) 2001-10-18 2001-10-18 Condensatori per armadi frigoriferi domestici ed armadio frigorifero domestico dotato di tale condensatore.

Publications (3)

Publication Number Publication Date
EP1304533A2 true EP1304533A2 (de) 2003-04-23
EP1304533A3 EP1304533A3 (de) 2003-07-02
EP1304533B1 EP1304533B1 (de) 2008-11-12

Family

ID=11460877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020523A Expired - Lifetime EP1304533B1 (de) 2001-10-18 2002-09-16 Haushaltskühlschrank mit einem Kühlfach und einem Kondensator

Country Status (8)

Country Link
US (1) US6840314B2 (de)
EP (1) EP1304533B1 (de)
AT (1) ATE414247T1 (de)
BR (1) BR0204213A (de)
DE (1) DE60229824D1 (de)
ES (1) ES2316511T3 (de)
IT (1) ITVA20010037A1 (de)
MX (1) MXPA02010268A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007124705A1 (de) * 2006-04-27 2007-11-08 Kenmore Thermo Kälte GmbH Verflüssiger mit einer mäanderförmig geführten verflüssigerleitung
DE102007023672A1 (de) * 2007-05-22 2008-11-27 Institut für Luft- und Kältetechnik gGmbH Kompaktverflüssiger für Haushaltskältegeräte mit erzwungener Konvektion
WO2008141626A1 (de) * 2007-05-22 2008-11-27 Institut Für Luft- Und Kältetechnik Gemeinnützige Gmbh Rückwandverflüssiger für haushaltskältegeräte

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7007504B2 (en) * 2003-01-29 2006-03-07 Kyeong-Hwa Kang Condenser
CN105258549B (zh) * 2015-09-18 2017-06-20 浙江万享科技股份有限公司 一种水循环蒸发换热冷却式冷凝器
US11396069B2 (en) * 2019-11-21 2022-07-26 Hamilton Sundstrand Corporation Integrated horn structures for heat exchanger headers

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2071182A (en) * 1935-01-26 1937-02-16 Gen Electric Refrigerating machine condenser
US2189494A (en) * 1932-11-26 1940-02-06 Gen Motors Corp Refrigerating apparatus
US2471960A (en) * 1944-08-14 1949-05-31 Houdaille Hershey Corp Condenser
US2585736A (en) * 1948-03-24 1952-02-12 Kold Hold Mfg Company Heat exchange unit having a trough
US2595472A (en) * 1949-05-03 1952-05-06 Lincoln M Larkin Heat exchanger
US3406750A (en) * 1965-03-30 1968-10-22 Olin Mathieson Composite panel heat exchanger and the method of manufacture
JPH05157403A (ja) * 1991-12-09 1993-06-22 Hitachi Ltd 冷蔵庫用凝縮器及びその製造方法
US5353868A (en) * 1993-04-19 1994-10-11 Abbott Roy W Integral tube and strip fin heat exchanger circuit
EP0756142A2 (de) * 1995-07-26 1997-01-29 Hitachi, Ltd. Kühlschrank
EP0843138A1 (de) * 1996-11-14 1998-05-20 OCEAN S.p.A. Ein Wärmeaustauscher wie ein Verflüssiger und/oder Verdampfer für einen Kühlschrank,einen Gefrierschrank oder eine Kombination der Beiden und dergleichen
US6050330A (en) * 1996-05-24 2000-04-18 Sollac Metal tank

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064141A (en) * 1934-03-16 1936-12-15 Fedders Mfg Co Inc Method of making refrigerating apparatus
US2514469A (en) * 1947-10-31 1950-07-11 Gen Motors Corp Method of fabricating heat exchangers
US2626130A (en) * 1949-08-19 1953-01-20 Raskin Leon Heat exchanger device
US3046758A (en) * 1960-08-11 1962-07-31 Olin Mathieson Heat exchangers
US3240269A (en) * 1965-06-02 1966-03-15 Reynolds Metals Co Composite refrigerator evaporator
DE2738670C2 (de) * 1977-08-26 1979-10-25 Unilever N.V., Rotterdam (Niederlande) Plattenwärmetauscher

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2189494A (en) * 1932-11-26 1940-02-06 Gen Motors Corp Refrigerating apparatus
US2071182A (en) * 1935-01-26 1937-02-16 Gen Electric Refrigerating machine condenser
US2471960A (en) * 1944-08-14 1949-05-31 Houdaille Hershey Corp Condenser
US2585736A (en) * 1948-03-24 1952-02-12 Kold Hold Mfg Company Heat exchange unit having a trough
US2595472A (en) * 1949-05-03 1952-05-06 Lincoln M Larkin Heat exchanger
US3406750A (en) * 1965-03-30 1968-10-22 Olin Mathieson Composite panel heat exchanger and the method of manufacture
JPH05157403A (ja) * 1991-12-09 1993-06-22 Hitachi Ltd 冷蔵庫用凝縮器及びその製造方法
US5353868A (en) * 1993-04-19 1994-10-11 Abbott Roy W Integral tube and strip fin heat exchanger circuit
EP0756142A2 (de) * 1995-07-26 1997-01-29 Hitachi, Ltd. Kühlschrank
US6050330A (en) * 1996-05-24 2000-04-18 Sollac Metal tank
EP0843138A1 (de) * 1996-11-14 1998-05-20 OCEAN S.p.A. Ein Wärmeaustauscher wie ein Verflüssiger und/oder Verdampfer für einen Kühlschrank,einen Gefrierschrank oder eine Kombination der Beiden und dergleichen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 562 (M-1494), 12 October 1993 (1993-10-12) & JP 05 157403 A (HITACHI LTD), 22 June 1993 (1993-06-22) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007124705A1 (de) * 2006-04-27 2007-11-08 Kenmore Thermo Kälte GmbH Verflüssiger mit einer mäanderförmig geführten verflüssigerleitung
DE102007023672A1 (de) * 2007-05-22 2008-11-27 Institut für Luft- und Kältetechnik gGmbH Kompaktverflüssiger für Haushaltskältegeräte mit erzwungener Konvektion
WO2008141626A1 (de) * 2007-05-22 2008-11-27 Institut Für Luft- Und Kältetechnik Gemeinnützige Gmbh Rückwandverflüssiger für haushaltskältegeräte

Also Published As

Publication number Publication date
EP1304533A3 (de) 2003-07-02
ES2316511T3 (es) 2009-04-16
EP1304533B1 (de) 2008-11-12
ATE414247T1 (de) 2008-11-15
DE60229824D1 (de) 2008-12-24
BR0204213A (pt) 2003-09-16
US6840314B2 (en) 2005-01-11
MXPA02010268A (es) 2003-12-12
ITVA20010037A1 (it) 2003-04-18
US20030085029A1 (en) 2003-05-08

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